Does a digital detox work? What the trials and Cal Newport say

A digital detox cuts your phone use for as long as the break lasts, and on its own it does little more. On average, breaks from social media make little or no difference to mood or life satisfaction, and use tends to creep back once the break ends. A break can still help if you plan it as a step toward something. Cal Newport's version is a 30-day declutter that you fill with other activities and end with rules for which apps come back, and on what terms.

Newport is an associate professor of computer science at Georgetown University (Penguin Random House) who, as he told a TEDx audience in 2016, has "never had a social media account" (TEDxTysons). In December 2017, he asked his readers whether anyone would spend 30 days without the optional technology in their personal lives. "Because it was a big ask, I thought I would get a dozen readers," he told Rich Roll. "1,600 people signed up to do it" (The Rich Roll Podcast, 1:01:40).

He heard back from a few hundred of those readers, and the experiment fed into his book Digital Minimalism. The ones who treated the month as a pure break, he says, struggled to finish it, and the ones who filled it with other things kept going. His view of the detox itself: "at first, there is a detox effect. But I'm not a big believer in digital detoxes as a standalone thing" (57:24). The trials point the same way.

Does a digital detox work? What the trials found

Researchers define a digital detox as "timeouts from using electronic devices (e.g., smartphones), either completely or for specific subsets of smartphone use." A 2022 review of 21 such studies found that people used their phones or apps less during the break, with medium-sized effects. Overall, though, "most of the studies showed either no effects or mixed findings" (Radtke et al., 2022).

The trials since then are larger and point to small effects on how people feel:

In this list, the larger studies found the smaller effects. The 2020 Facebook study's authors wrote that the effects were "moderate and may be smaller than correlation studies would suggest." The one-week trial relied on volunteers who were willing to stop and on self-reported scores. The 2025 deactivation study is a working paper, and eight of its 27 authors were affiliated with Meta, though the independent academics had final say over the analysis. Researchers also disagree about how to pool these experiments (Ferguson, 2025).

So a break reliably cuts use, and its effect on how you feel is small and varies from person to person. The large trials are about social media, not your whole phone.

Why a break on its own doesn't last

1. Use comes back when the break ends

In an Austrian trial with 111 students, those asked to keep their phone use under two hours a day for three weeks cut it by about two and a half hours a day, though only 24 of the 58 kept strictly to the limit. After the cap, "screen time increased rapidly", and "from week 7 onwards no differences in screen time were observed" (Pieh et al., 2025).

2. The time moves to other apps

In the six-week deactivation trial, about three-quarters of the time freed from Facebook, and all of the time freed from Instagram, went to other apps. In a separate trial of daily limits, about half the time saved moved elsewhere (Allcott et al., 2022). Our guide to doomscrolling covers how to stop the second app.

3. A break doesn't teach you to handle the urge

Nir Eyal, author of Indistractable, once went as far as a flip phone and an offline word processor, and found he "still got distracted" (The Knowledge Project, 16:01 to 17:04). "This is why digital detoxes don't work, right?" he says. "Because we're not learning how to deal with that discomfort" (37:18). Gloria Mark, who studies attention at the University of California, Irvine, is just as blunt: "I am not a fan of digital detox because to me, it's like a crash diet" (ReThinking with Adam Grant). She prefers changing daily routines, such as using social media or the phone an hour less each day. Our article on attention span covers her research.

One study compared the two directly. In Germany, 619 smartphone users were split into a week without the phone, an hour less each day, or no change. In the authors' summary, "most effects were stronger and remained more stable over 4 months in the reduction group than in the abstinence group" (Brailovskaia et al., 2023). It's one study, and we could read only its summary, but it followed people longer than any other here.

How to run a 30-day declutter, Cal Newport's way

Newport calls his version a declutter "instead of a detox because it's more than detoxing" (59:37). His publisher describes the book as making the case for "a thoughtful method to decide what tools to use, for what purposes, and under what conditions," starting with "a thirty-day 'digital declutter' process" (Penguin Random House). In the review above, the length of a break made no clear difference, but the breaks it covered were plain time off; Newport's month adds steps 2 to 4. The steps below come from his interviews, and what he says about his readers is his own recollection, not measured data.

1. Step away from the optional technology for 30 days

The month covers your personal life, not your job: "step away from essentially any of the optional stuff in your personal digital life," he says, such as social media, online news, video games and streaming video (57:24). You decide what counts as optional: on The Tim Ferriss Show, his example was a parent who keeps the texts that say when to pick up a child from practice and drops the group chats for the month. He chose 30 days because, in his experience, nothing shorter seemed to work as well.

2. Fill the time on purpose

"You get books out of the library. You join things. You invite people over for board game night" (59:37). On The Tim Ferriss Show, Newport said the readers who treated the month like a detox and tried to tough it out tended not to last the 30 days, while those who threw themselves into new activities, such as joining a running club, buying a bike or taking long walks, kept going (The Tim Ferriss Show). Expect an itch at first: one reader told him she kept checking the weather app, the last app on her phone with anything new in it, for about ten days (1:03:47).

3. Bring back only what serves something you value

At the end of the month, Newport's test for each app is: "is this thing going to really help one of these things I really value?" (1:00:37). The apps that don't pass stay off.

4. Write rules for how and when

What comes back comes back with conditions. His example is artists who keep Instagram on the computer, follow ten artists they admire, and check in on Sunday for about 20 minutes (1:14:11). Of the readers who kept some social media, he recalls, "it was like 90-plus percent took it off their phone" (1:16:14). Where you can, turn the rules into settings, such as an app moved off the phone, a daily limit or a charger outside the bedroom, because settings keep working after the month ends. Our guide to how to reduce screen time shows how to set them up.

If a month off isn't realistic, remember the German study: an hour less a day held up better over four months than a week off. A dopamine detox is a different idea with the same weak spot. And if being apart from your phone makes you wonder whether you're addicted, our article on phone addiction explains why the craving is common.

A break with somewhere to go

Newport expected a dozen readers to try his month off, and the ones who stayed with it were those who knew what they were stepping toward. Without that, as he puts it, "it just seems like arbitrary deprivation" (1:05:52). The trials fit his account: breaks cut use while they run, and the effect fades once they end.

The 1h Protocol to Take Control of Your Phone works on the everyday version: the habits and settings that make the phone easier to put down, with no break required. Its free first chapter uses a few questions and your phone's own numbers to find your pattern and gives you one thing to do today. The full program takes about an hour: you set up your phone as you go and leave with a personal protocol, a lock-screen card and day-7 and day-14 reviews, with four short check-ins over 30 days. Start free

Frequently asked questions

Does a digital detox actually work?

It cuts your use during the break. Beyond that, the evidence is weak: a 2025 review of 10 studies found no significant effect of social media breaks on mood or life satisfaction (Lemahieu et al., 2025), and the largest trial found small effects (Allcott et al., 2025). Use also tends to come back once the break ends, so what you change afterward matters more.

Is taking a break from social media good for you?

It can be, for some people, but the average effect is small. In a 2020 trial, about 1,700 US adults who switched off Facebook for four weeks reported slightly better well-being and spent more time with friends and family (Allcott et al., 2020). In a review of 10 studies, breaks made no significant difference on average.

What happens when you go a day without your phone?

In one small study, 36 young adults who spent 24 hours without their phones felt more craving by the end of the day, but their mood and anxiety didn't change, and the craving dropped once they had the phone back (Wilcockson et al., 2019). Feeling a pull is common and doesn't mean something is wrong.

How long should a digital detox last?

No length has been shown to work best. In a review of studies of social media breaks, the length of the break made no clear difference, and a one-week break on its own is unlikely to change much once it ends. If you take a week, plan what fills it and decide on the last day which apps come back and on what terms. Cal Newport uses 30 days, based on his readers' experience.

What's the difference between a detox and digital minimalism?

A detox is a break, after which people usually go back to how they used their phone before. Digital minimalism, Cal Newport's idea, uses a 30-day break to decide which technology serves things you value, then brings those tools back with rules for how and when you use them.

Sources

This article draws on Cal Newport's interviews on The Rich Roll Podcast and The Tim Ferriss Show, his TEDx talk and his publisher's description of Digital Minimalism, Gloria Mark's interview on ReThinking with Adam Grant, Nir Eyal's interview on The Knowledge Project, and the studies listed below.

• Cal Newport on Digital Minimalism: Why Focus Is the New Superpower (podcast episode, The Rich Roll Podcast, 2019)
• The Tim Ferriss Show #568, Cal Newport (podcast transcript, 2022; paraphrased)
• Cal Newport, Digital Minimalism (book, publisher page, 2019)
• Cal Newport, Why you should quit social media (TEDx talk, 2016)
• ReThinking with Adam Grant, Why a digital detox won't reset your attention span, with Gloria Mark (podcast episode, 2026)
• The Knowledge Project #104, Nir Eyal, Mastering Indistraction (podcast episode, 2021)
• Radtke et al, Digital detox: an effective solution in the smartphone era? A systematic literature review (systematic review of 21 studies, 2022)
• Lemahieu et al, The effects of social media abstinence on affective well-being and life satisfaction (meta-analysis of 10 studies, 2025)
• Allcott et al, The Effect of Deactivating Facebook and Instagram on Users' Emotional State (two randomized trials, about 35,000 US adults, NBER working paper, 2025)
• Allcott, Braghieri, Eichmeyer & Gentzkow, The Welfare Effects of Social Media (randomized trial, about 1,700 US adults, American Economic Review, 2020)
• Lambert et al, Taking a one-week break from social media improves well-being, depression, and anxiety: a randomized controlled trial (randomized trial, 154 adults, 2022)
• Brailovskaia et al, Finding the "sweet spot" of smartphone use: reduction or abstinence to increase well-being and healthy lifestyle? (experimental study, 619 smartphone users in Germany, abstract only, 2023)
• Ferguson, Do social media experiments prove a link with mental health: a methodological and meta-analytic review (meta-analytic review, abstract only, 2025)
• Wilcockson, Osborne & Ellis, Digital detox: the effect of smartphone abstinence on mood, anxiety, and craving (within-person study, 36 completers, 2019, with 2020 corrigendum)
• Pieh et al, Smartphone screen time reduction improves mental health: a randomized controlled trial (randomized trial, 111 students, 2025)
• Allcott, Gentzkow & Song, Digital Addiction (randomized trial, 1,933 US adults, American Economic Review, 2022)